HVAC Drive H300 variable frequency AC drive (VFD) is the result of extensive research and builds on our vast experience of the HVAC market.

The HVAC Drive H300, part of the newly introduced Specialist series of industry-specific drive technologies, builds on our company’s five decades of drives expertise, delivering precise, dependable flow control.

The HVAC Drive H300 dimensions are among the smallest in its class at every power rating. This saves valuable building real estate, makes the drives easy to handle, and maximizes mounting flexibility. 

Features & Benefits:

1. Building Automation Systems

Seamless integration with Building Automation Systems with the following onboard communications supported:

1. BACnet, conformance tested to guarantee reliable operation
2. Modbus RTU communications

2. Custom Software

• Flexibility without a Building Management System with optional modules for running custom application software.

3. Fire mode

• The HVAC Drive H300 has onboard Fire mode which allows the drive to continue running uninterrupted in the event of a fire. It can allow the safe extraction of smoke while the drive’s other functions are maintained.

4. High efficiency operating modes

• Quiet operation with Rotor Flux Control modes, high switching frequencies (up to 16 kHz).
• Intelligent 10 speed drive cooling fan with minimum noise operation.

5. Conformal coated PCB

• High product reliability with conformally coated PCBs as standard.

6. Compact dimensions

• Among the most compact VFD in its class at every frame size, maximizing mounting flexibility.

7. Dual PID

• Built-in dual process PID loops that can operate independently or be combined to provide more complex functionality.

8. Energy efficiency as standard

• Exponential energy savings through fitting a Control Techniques Variable Frequency Drive into the application.
• HVAC Drive H300 provides high energy efficiency, up to 98% where very little energy is lost in the conversion.
• Motor control of super high efficiency sensor-less permanent magnet motors.
• Dynamic Volts/Hertz energy optimization minimises power loss under low load conditions.

9. Energy Savings

Energy savings features promise a low total cost ownership:

1. Sleep, Wake & VFD standby modes ensure minimal wasted energy
2. Onboard power metering includes a cost per kWh function to track operating costs
3. Energy savings verified with CT Energy Efficiency Calculator tool

10. Thermistor Monitoring

• A temperature sensor input is available which can directly provide an analogue input without a transducer for control of fans and compressors. 

11. Extreme Operating Conditions

• Operate in conditions from -20°C to 55°C* (40 °C as standard, above with derating).

12. Extended Connectivity

• Extended connectivity with SI option modules (POWERLINK, EtherNet/IP, Modbus TCP/IP, EtherCAT, PROFINET, PROFIBUS, DeviceNet and CANopen).

13. Quick Commissioning

HVAC Drive H300 portable memory devices:

• A Smartcard enables simplified maintenance and commissioning without a PC, storing parameters and system upgrades.